:root {
  color-scheme: dark;
  --bg: #0d1321;
  --bg-elevated: rgba(17, 25, 40, 0.78);
  --bg-soft: #121b2c;
  --card: rgba(19, 30, 49, 0.92);
  --border: rgba(165, 180, 252, 0.18);
  --text: #e5eefc;
  --muted: #adc2e0;
  --accent: #f59e0b;
  --accent-strong: #fb7185;
  --accent-soft: rgba(245, 158, 11, 0.15);
  --shadow: 0 24px 80px rgba(5, 10, 20, 0.45);
  --radius: 24px;
  --radius-sm: 16px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(251, 113, 133, 0.18), transparent 32%),
    radial-gradient(circle at 20% 20%, rgba(245, 158, 11, 0.16), transparent 24%),
    linear-gradient(180deg, #10182a 0%, #0b1220 100%);
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, var(--max-width));
  margin: 0 auto;
  padding: 1rem 1.5rem 0;
}

.top-nav__logo-link {
  display: flex;
  align-items: center;
}

.top-nav__logo {
  height: clamp(28px, 5vw, 60px);
  width: auto;
}

.top-nav__links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.92rem;
  color: var(--muted);
  margin-left: auto;
}

.top-nav__links a:hover {
  color: var(--accent);
}

.hero {
  min-height: 36vh;
  padding: 3.5rem 1.5rem 2.5rem;
}

.hero__content,
.section {
  width: min(100%, var(--max-width));
  margin: 0 auto;
}

.hero__content {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 420px);
  gap: 2rem;
  align-items: center;
}

.hero__badge,
.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: #ffd89d;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Small logo used in footers on card pages (pair, qr, signup) */
.page-footer {
  display: flex;
  justify-content: center;
  padding: 2rem 1rem 1.5rem;
}

.page-footer__logo {
  display: block;
  width: 110px;
  height: auto;
  opacity: 0.75;
  transition: opacity 160ms ease;
}

.page-footer__logo:hover {
  opacity: 1;
}

.hero h1,
.section h2 {
  margin: 1rem 0 0;
  line-height: 1.05;
}

.hero h1 {
  max-width: 12ch;
  font-size: clamp(2.8rem, 6vw, 5.4rem);
}

.hero__lead,
.feature-card p,
.install-panel p,
.step p,
.faq-card p {
  color: var(--muted);
}

.hero__lead {
  max-width: 56ch;
  margin: 1.25rem 0 0;
  font-size: 1.08rem;
}

.hero__actions {
  display: flex;
  gap: 0.9rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  font-weight: 700;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #140f0b;
  box-shadow: 0 14px 30px rgba(251, 113, 133, 0.28);
}

.button--ghost {
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.03);
}

.terminal-card,
.feature-card,
.install-panel,
.step,
.faq-card {
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow);
}

.terminal-card {
  padding: 1.1rem;
  border-radius: var(--radius);
  backdrop-filter: blur(20px);
}

.terminal-card__chrome {
  display: flex;
  gap: 0.45rem;
}

.terminal-card__chrome span {
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.24);
}

.terminal-card__chrome span:first-child {
  background: #fb7185;
}

.terminal-card__chrome span:nth-child(2) {
  background: #fbbf24;
}

.terminal-card__chrome span:nth-child(3) {
  background: #4ade80;
}

.terminal-card__label {
  margin: 1rem 0 0.75rem;
  color: #ffd89d;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

pre {
  overflow-x: auto;
  margin: 0;
  padding: 1rem 1.1rem;
  border-radius: 18px;
  background: #08101c;
  color: #f8fafc;
  font-size: 0.98rem;
}

code {
  font-family:
    "SFMono-Regular", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    monospace;
}

.terminal-card__notes {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.terminal-card__notes li + li {
  margin-top: 0.5rem;
}

.section {
  padding: 1.5rem 1.5rem 4rem;
}

.section__header {
  max-width: 54rem;
}

.section h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.feature-grid,
.faq-grid,
.steps {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.75rem;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.faq-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.steps {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card,
.faq-card,
.step,
.install-panel {
  border-radius: var(--radius-sm);
  padding: 1.4rem;
}

.feature-card h3,
.faq-card h3,
.step h3 {
  margin-top: 0;
  margin-bottom: 0.65rem;
}

.install-panel {
  margin-top: 1.5rem;
  background:
    linear-gradient(180deg, rgba(245, 158, 11, 0.08), transparent),
    var(--card);
}

.install-panel p {
  margin: 1rem 0 0;
  max-width: 48rem;
}

.step {
  position: relative;
  overflow: hidden;
}

.step::before {
  content: "";
  position: absolute;
  inset: auto auto 0 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
}

.step__number {
  display: inline-block;
  margin-bottom: 0.9rem;
  color: #ffd89d;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.copy-wrapper {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.copy-wrapper pre {
  flex: 1;
  min-width: 0;
}

.copy-btn {
  flex-shrink: 0;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid rgba(165, 180, 252, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--muted);
  cursor: pointer;
  transition:
    background 160ms ease,
    color 160ms ease,
    border-color 160ms ease;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.13);
  color: var(--text);
}

.copy-btn--copied {
  color: #4ade80;
  border-color: rgba(74, 222, 128, 0.3);
}

.copy-btn--copied::after {
  content: "Copied!";
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  background: rgba(74, 222, 128, 0.12);
  border: 1px solid rgba(74, 222, 128, 0.3);
  color: #4ade80;
  font-size: 0.72rem;
  white-space: nowrap;
  pointer-events: none;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.5rem;
  margin-top: 2rem;
}

.site-footer__inner {
  width: min(100%, var(--max-width));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer__copy {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.site-footer__copy a {
  color: var(--text);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  transition: color 160ms ease, border-color 160ms ease;
}

.site-footer__copy a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.site-footer__links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.site-footer__links a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.88rem;
  transition: color 160ms ease;
}

.site-footer__links a:hover {
  color: var(--text);
}

@media (max-width: 900px) {
  .feature-grid,
  .faq-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 2.5rem;
  }
}

@media (max-width: 640px) {
  .hero,
  .section {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero h1 {
    max-width: 100%;
  }

  pre {
    font-size: 0.9rem;
  }

  .site-footer {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}